Automobile heater



Dec. s, 1936.

R. B. oTwELL AUTOMOBILE HEATER Filed May s, 1935 5 sheets-sheet 1 I INVENTOR.

BY f f im ATTORNEY.

Dec 8, 1936. R. B. TWELL l 2,0635825 AUTOMOBILE HEATER Filecil May 3, 1935 5 Sheets-Sheet 2 INVENTOR.

C/Xf f- ATTORNEY.

Dec. 8, 1936. R. B. OTWELL AUTOMOBILE HEATER Filed' May 5, 1935 5 Sheets-Sheetl 3 INVENTOR.

BY e; 2L/1MM ATTORNEY.

IQ' Q Dec. 8, 1936. R, B, OTWELL AUTOMOBILE HEATER Filed May 5, 1955 5 Sheets-Shet 4 INVENTOR.

ATTORNEY.

Dec. 8, 1936. R. B. oTwELl.

AUTOMOBIL HEATER 5 Sheets-Sheet 5 filling @w 2 a 6 1 a a a7 .a a l: 7 6 fy 6 w #M F O Hr \./l F 6 e INVENTOR.

ATTORNEY.

Patented Dec.` 8,l 1936 UNITED. STATES PAT-ENT OFFICE' 2,063,525 AU'rbMoBILE' HEATER Ralphv n. oiweu, Detroit, Mich. Application May s, 1935, serial No. 19,654 s claims. (ci. 12a-11o) dash of an automobile to show its connection` therewith.

Figure 2 is a sectional elevation, the section being substantially in a plane through the sparkv plugs.

Figure 3 is a section of the cylinder head taken on or about line 3 3 Figures 2 and 13.

Figure 4 is a horizontal sectionof the cylinder head on the line 4 4 Figure 2.

Figure 5 is an elevation from the position indi"- cated by the arrows 5 5 Figure 4.

Figure 6 is `a sectiononjheline 6 6 Figure 4.

-Figurellwis asection on the line I 'I Figure 4.

Figure 8 is a section on the line 8 8 Figure 4.

` Figure 9 is a section on the line 9 9 Figure 4. Figure 10 is a section on theline I Il III Figure 4.

Figure l1 is a detail section in the plane I I I I of Figures 2 and 12.- Figure 1211s a detail elevation looking toward the right of Figure 11.

Figure 13 is an elevationof Figure 3 looking froxrkthe position indicated by the arrows I3-I3. The numeral Z'denotes 'the power plant, the cylinders of which are indicated by 2a, and the water space by 2b. The numeral 2c indicates the cooling fan. The numeral 3 designates the dash, and 4 the foot-board. l

The cylinder head is divided into a lower and an upper compartment, respectively indicated by 5 and 6, by a horizontal partition 1.- 'I'he compartment 5 extends longitudinally through the head, and is continued at one end in a spiral conduit 8, which has its open end in vposition'to re-l ceive a current of air from the fan 2c, and at the a number of vertical passages 26, see Figures 2,

8, 9, and 10.

The numerals Saindicate :fins extending between the partition I and the lower wall of the compartment 5 and integral therewith. These`- fins extend parallel toeach other and in a direction longitudinal of the chamber 5 and serve-to brace and strengthen the said partition and wall and to transfer heat to a current of air passing through said compartment. j

The head is secured in position in the usual way@ by conventional lag-bolts III passing through bolt holes Il in the head, and the spark-plugs I2 also pass through vertical apertures in the head into the cylinders in the usual way.

Numerals I3 and I4, Figures 2, 11, and 12, indicate'two discs united by an S-spring I5 so as to extend in parallel planes and in opposite directions. These discs are secured to the dash-'board 3, by a bolt I6 passing through the S-spring I5, midway between the two discs and perpendicular to the planes of said discs. 'I'he bolt I6 is secured to the dash-board 3, so that the discs shall turn about it toV com e axially in` line with the conduit 9 land act as valves to control or modify the passage of air through said conduit. These discs 4I3 and I4 are differently shaped. The disc I3 has a diametral ridge -I3a V-shaped in cross section formed therein. The s-spring connection I5,'y

holds one of said discs close to the surface of the dash-board and the other is spaced therefrom, as shown in 'Figure' 2. y

The cylinder head is an aluminum casting and the bracing fins 5a make it practicable to const'ruct the lower wall of the passage 5 very thinwhere it comes over the combustion chambers of the cylinder, thus the heat is quickly carried to the current of air in said passage. 'Ihe other walls-being provided with .hot water jackets will not allow theheat acquired bythe .current of air to pass therethrough.

It will nowv be evident that by constructing the cylinder head as'provi'ded in the present embodiment, heat may be taken quickly and directly from the wall of the combustion chamber and i delivered into the car, before the cooling liquid lowers its temperature to any extentand by `making provision, as disclosed, for the cooling l'quid to carry the vheat from the combustion chamber into the cooling system when notrequired to heat the body of th'e car, an outstanding advantage has been gained by the present. invention over the indierent results heretofore secured through heaters employing the exhaust gases of an engine to heat the air delivered into .the body of the vehicle.

What I claim is: 1. In a water-cooled engine having an internal combustion chamber, an air passage having a wall in common with said combustion chamber;

and a superimposed water passage having a la'wer wall in common with the air passage', whereby the air may attain a higher temperature than the cooling water; and means toiJ causing a current of air to pass through said air passage between the combustion chamber andthe water jacket. v

2. In a water-cooled engine; a cylinder head .having an air passage over a wall common with the wall of the combustion chamber of the engine and a water passage above the air passage connected with a water jacket of the engine;

and means for causing a current of air to pass through said air passage, whereby the air may be subjected directly to the heat of the combusv tion chamber.

3. In a water-cooled engine havinga cylinder head with an air passage directly over a wall common with the wall of the combustion chamber, said air passage having integral vertical bracing and heat-diffusing ns, extending between the upper and lower wall of the air passage; whereby air in circulating through the air passage and around the heat-diffusing fins may be exposed to a greater heating surface and thereby attain av4 relatively higher temperature.

4. In a water-cooled engine having a plurality of cylinders, a cylinder head having a water jacket connected with a water jacket of the engine, and an air passage beneath the water jacket of the cylinder head, having a wall in common with the wall of the combustion chamber of the engine; vertical bracing and heat-diffusing ns 5. In a water-cooled engine, a cylinder head having an air passage between the combustion chamber and a superimposed water jacket inte-V gral with the combustion chamber of the engine; a cooling fan for causing a current of air to be delivered into the air passage of the cylinder head over a wall common to botlf the air passage and the combustion chamber, whereby the air may be heated directly through the wall of the combustion chamber to a relatively high temperature.

6. In a water-cooled engine comprising a plurality of cylinders; a cylinder head having an air passagev therethrough, the lower wall of said passage forming the end walls of the cylinders, the upper wall of said passage forming the lower wall of a water jacket communicating with a water jacket of the cylinders, whereby the air passing through the air passage over the wall of the combustion chamber ofthe cylinder head may be discharged at a relatively high temperature; and means for forcing a current of air e through said passage.

7. In a water-cooled engine 'having a plurality of cylinders; an aluminum cylinder head, having an a-ir passage'therethrough, the lower wall of the air passage being relatively thin and forming the end wall of the combustion chamber of the engine; said cylinder head having also a water jacket above the air passage separated from-said air passage by the upper wall of the latter, said water jacket communicating with a water jacket of the engine; strengthening and heat-radiating iins extending between the upperA and lower walls of the air passage, whereby a current of air passing through the air passage and heated through the wall of the combustion chamber and heat-radiating fins may be discharged at a higher temperature than the cooling water.

8. In a water-cooled engine having an internal combustion chamber; a cylinder head having a y water jacket communicating with the water jacket of the cylinders, also an air passage having a wall in common with the end wall of the combustion chamber, and means for forcing a current of air through the air passage over the wall common to both the combustion chamber and air passage, whereby the air may be heated to a relatively high temperature.

RALPH B. OTWELL.

asl 

